{"created":"2021-03-01T06:50:47.859252+00:00","id":32157,"links":{},"metadata":{"_buckets":{"deposit":"82dea223-f6c7-4e91-8cce-f949cec85d7c"},"_deposit":{"id":"32157","owners":[],"pid":{"revision_id":0,"type":"depid","value":"32157"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00032157","sets":["80:4453:4461","9:504:4455:4462"]},"author_link":["71473","71474","71471","71472"],"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Development of Uninterruptible Power Supply Systems and their Deployment at Online Seismic Observation Stations in Chiba Prefecture"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2013","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"17","bibliographicPageStart":"13","bibliographicVolumeNumber":"19","bibliographic_titles":[{"bibliographic_title":"技術研究報告"}]}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We have developed an uninterruptible power supply (UPS) systems suitable for permanent seismic stations, and have used it to replace commercial UPS systems at seismic stations belonging to the Daidaitoku seismic network. For use in seismic stations, the newly developed UPS system offers several advantages over the commercial UPS systems that are often used to protect personal computers from a sudden power failure. First, independent cut-off voltages can be set for two different output circuits, one for an ISDN router and the other for a seismometer and data logger. In addition, DC power can be supplied using a battery, and the efficiency is improved by about two times. Finally, the new UPS is more compact, which allows easier handling at stations. 　　When a battery with a capacity of 40 Ah is used, the newly developed UPS is designed to supply continuous electric power to equipment for seven days after a commercial power failure. To achieve this, the power to the ISDN router, which represents approximately 70% of the total power, is automatically turned off about two days after the power failure occurs. The power supply to the data logger and seismometer is maintained until the battery voltage reaches a preset lower limit, in order to prevent deep discharge. If the commercial power supply is restored at the station, all systems are restarted and the battery is automatically recharged. 　　After being installed in the Daidaitoku seismic network, the new UPS systems functioned without any problems. Therefore, the power system in seismic stations can be successfully upgraded in this manner.","subitem_description_type":"Abstract"}]},"item_4_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"＜論説＞","subitem_description_type":"Other"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"71473","nameIdentifierScheme":"WEKO"}],"names":[{"name":"NAKAJIMA, Gou"}]},{"nameIdentifiers":[{"nameIdentifier":"71474","nameIdentifierScheme":"WEKO"}],"names":[{"name":"MIYAKAWA, Koji"}]}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/00032148","subitem_identifier_reg_type":"JaLC"}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学地震研究所"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11602838","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"13426486","subitem_source_identifier_type":"ISSN"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"Earthquake Research Institute，University of Tokyo"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学地震研究所技術部総合観測室"},{"subitem_text_value":"Technical Supporting Section for Observational Research, Earthquake Research Institute, the University of Tokyo"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"中島, 剛"}],"nameIdentifiers":[{"nameIdentifier":"71471","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"宮川, 幸治"}],"nameIdentifiers":[{"nameIdentifier":"71472","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-06-12"}],"displaytype":"detail","filename":"19_013-017.pdf","filesize":[{"value":"730.5KB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"19_013-017.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/32157/files/19_013-017.pdf"},"version_id":"1cac1428-cd84-4aa7-a939-4ca9ed4b7038"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Uninterruptible power supply system","subitem_subject_scheme":"Other"},{"subitem_subject":"Power control system for seismic station","subitem_subject_scheme":"Other"},{"subitem_subject":"Permanent seismic station","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"無停電電源システムの開発と房総半島の大大特地震観測網への設置","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"無停電電源システムの開発と房総半島の大大特地震観測網への設置","subitem_title_language":"ja"}]},"item_type_id":"4","owner":"1","path":["4461","4462"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2017-05-15"},"publish_date":"2017-05-15","publish_status":"0","recid":"32157","relation_version_is_last":true,"title":["無停電電源システムの開発と房総半島の大大特地震観測網への設置"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-19T05:11:10.945864+00:00"}